public function testCommentAtTheRootIndent()
    {
        $this->assertSame(array(
            'services' => array(
                'app.handler.session_idle' => array(
                    'class' => 'AppBundle\\Handler\\SessionIdleHandler',
                    'arguments' => array(
                        0 => '@session',
                        1 => '@security.token_storage',
                        2 => '@router',
                        3 => '%session_max_idle_time%',
                    ),
                    'tags' => array(
                        0 => array(
                            'name' => 'kernel.event_listener',
                            'event' => 'kernel.request',
                            'method' => 'onKernelRequest',
                        ),
                    ),
                ),
            ),
        ), Yaml::parse(<<<EOF
services:
# Session Handler (Inactivity Logout)
    app.handler.session_idle:
        class: AppBundle\Handler\SessionIdleHandler
        arguments: ["@session", "@security.token_storage", "@router", %session_max_idle_time%]
        tags:
            - { name: kernel.event_listener, event: kernel.request, method: onKernelRequest }
EOF
        ));
    }